2 papers
astro-ph.CO2026
Induced gravitational waves -- beyond linear cosmological perturbation theory
Raphael Picard
This thesis focuses on gravitational waves (GWs) that arise beyond linear order in cosmological perturbation theory. In recent years, scalar-induced GWs have attracted significant…
astro-ph.CO2025
Suppression of the induced gravitational wave background due to third-order perturbations
Raphael Picard, Luis E. Padilla, Karim A. Malik +1
In this work, we revisit and evaluate new source terms which contribute to the induced gravitational wave background. We study their respective contributions to the stochastic grav…